Subtract 16/20 from 18/56
18/56 - 16/20 is -67/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
18/56 = 18 × 5/56 × 5 = 90/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
16/20 = 16 × 14/20 × 14 = 224/280 - Subtract the two like fractions:
90/280 - 224/280 = 90 - 224/280 = -134/280 - After reducing the fraction, the answer is -67/140
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